RAHWAY — Police and federal authorities are investigating a bank robbery today at Northfield Bank on Irving Street, said Lt. James Connolly of the Rahway Police Department.

Rahway police received a call about 1:41 p.m. from the bank reporting a robbery had occurred.

An unknown suspect passed a note to the teller and an undetermined amount of cash was taken, Connolly said. The suspect fled on foot downtown toward the Rahway train station and has not been apprehended.

Connolly could not say whether a gun was involved or provide a physical description of the suspect but said that information will be forthcoming.